400421501435 has 24 divisors (see below), whose sum is σ = 507680549280. Its totient is φ = 303145867008.

The previous prime is 400421501407. The next prime is 400421501453. The reversal of 400421501435 is 534105124004.

It is not a de Polignac number, because 400421501435 - 2³⁴ = 383241632251 is a prime.

It is a super-2 number, since 2×400421501435² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400421501398 and 400421501407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1538099 + ... + 1779491.

It is an arithmetic number, because the mean of its divisors is an integer number (21153356220).

Almost surely, 2^400421501435 is an apocalyptic number.

400421501435 is a deficient number, since it is larger than the sum of its proper divisors (107259047845).

400421501435 is a wasteful number, since it uses less digits than its factorization.

400421501435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242355 (or 242336 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 400421501435 its reverse (534105124004), we get a palindrome (934526625439).

The spelling of 400421501435 in words is "four hundred billion, four hundred twenty-one million, five hundred one thousand, four hundred thirty-five".